Badger Meter M-Series M2000 - Manual (Page 45)

Advanced Features
Software Filter Description The software filter operates as an acceleration filter This filter when configured
properly allows for filtering of fast changes in fluid flow Generally, this filter is used
in applications having highly conductive fluids This filter is intended to help provide
smoothing of the analog output and display fluctuations
Activation
[Off]
A
The Activation parameter setting enables or disables the software acceleration filter
To change the Activation setting, follow these steps from the Advanced menu:
1 Select Activation from the Advanced menu
2 Select the desired setting
3 Press [E] to save the option and to return to the Advanced menu
Filter Delay
[1]
A
The Filter Delay parameter lets you set the amount of time that the flow will be
held constant once the filter is activated The filter is activated by an acceleration
component of the fluid exceeding the configured limit
To change the Filter Delay follow these steps from the Advanced menu:
1 Select Filter Delay, from the Advanced menu
2 Select the desired setting
3 Press [E] to save the option and to return to the Advanced menu
Acceleration
Factor
[1]
A
The Acceleration Factor parameter lets you set the maximum acceleration for a given
pipe diameter and is dependent on the excitation frequency The maximum fluid
velocity is 12 m/s The following equation defines the maximum fluid acceleration:
Acceleration(MAX) = Acceleration Factor * 12 m/s * Pipe Area * Excitation
Frequency / 1 5
If the realized fluid acceleration exceeds the configured maximum acceleration, fluid
flow will be held constant for the time set at the Filter Delay parameter
To change the Acceleration Factor setting, follow these steps from the Advanced
menu:
1 Select Acceleration Factor from the Advanced menu
2 Select the desired setting
3 Press [E] to save the option and to return to the Advanced menu
Installation & Operation Manual
Page 45 August 2012